I've got an iMac coming via FedEx Ground from San Jose. I've never messed with tracking for a ground shipment before, but this time I'm concerned about it because I want to set up my office this Saturday. My current tracking update says it's due to arrive on 4/22 -- Saturday. But it hasn't been updated for three days, since the order was received at the FedEx depot in California. Anyone have experience with tracking FedEx ground shipments? Are their projected arrival dates accurate? Do they ever arrive early? Is it normal for them to go three days without an update on shipping status? Anything else I should be concerned about? I don't want to miss the shipment and have to wait until Monday to get my computer (thus losing my opportunity to set up the new system over the weekend).